Question

question number 40 please sir ji

Answer 1

16 we can write as 2 power 4

so bases are equal then power should add

X+1= 4
X= 3

option number b

Answer 2

${2}^{x + 1} = 16 \\ {2}^{x + 1} = {2}^{4}$
on comparing both sides

x + 1 = 4
x = 4 - 1
x = 3